1*8f1d5724Srobert //===----------------------------------------------------------------------===// 279c2e3e6Spatrick // 379c2e3e6Spatrick // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 479c2e3e6Spatrick // See https://llvm.org/LICENSE.txt for license information. 579c2e3e6Spatrick // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 679c2e3e6Spatrick // 779c2e3e6Spatrick // 879c2e3e6Spatrick // This file implements the "Exception Handling APIs" 979c2e3e6Spatrick // https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html 1079c2e3e6Spatrick // 1179c2e3e6Spatrick //===----------------------------------------------------------------------===// 1279c2e3e6Spatrick 1379c2e3e6Spatrick // Support functions for the no-exceptions libc++ library 1479c2e3e6Spatrick 1579c2e3e6Spatrick #include "cxxabi.h" 1679c2e3e6Spatrick 1779c2e3e6Spatrick #include <exception> // for std::terminate 1879c2e3e6Spatrick #include "cxa_exception.h" 1979c2e3e6Spatrick #include "cxa_handlers.h" 2079c2e3e6Spatrick 2179c2e3e6Spatrick namespace __cxxabiv1 { 2279c2e3e6Spatrick 2379c2e3e6Spatrick extern "C" { 2479c2e3e6Spatrick 2579c2e3e6Spatrick void __cxa_increment_exception_refcount(void * thrown_object)2679c2e3e6Spatrick__cxa_increment_exception_refcount(void *thrown_object) throw() { 2779c2e3e6Spatrick if (thrown_object != nullptr) 2879c2e3e6Spatrick std::terminate(); 2979c2e3e6Spatrick } 3079c2e3e6Spatrick 3179c2e3e6Spatrick void __cxa_decrement_exception_refcount(void * thrown_object)3279c2e3e6Spatrick__cxa_decrement_exception_refcount(void *thrown_object) throw() { 3379c2e3e6Spatrick if (thrown_object != nullptr) 3479c2e3e6Spatrick std::terminate(); 3579c2e3e6Spatrick } 3679c2e3e6Spatrick 3779c2e3e6Spatrick __cxa_current_primary_exception()3879c2e3e6Spatrickvoid *__cxa_current_primary_exception() throw() { return nullptr; } 3979c2e3e6Spatrick 4079c2e3e6Spatrick void __cxa_rethrow_primary_exception(void * thrown_object)4179c2e3e6Spatrick__cxa_rethrow_primary_exception(void* thrown_object) { 4279c2e3e6Spatrick if (thrown_object != nullptr) 4379c2e3e6Spatrick std::terminate(); 4479c2e3e6Spatrick } 4579c2e3e6Spatrick 4679c2e3e6Spatrick bool __cxa_uncaught_exception()4779c2e3e6Spatrick__cxa_uncaught_exception() throw() { return false; } 4879c2e3e6Spatrick 4979c2e3e6Spatrick unsigned int __cxa_uncaught_exceptions()5079c2e3e6Spatrick__cxa_uncaught_exceptions() throw() { return 0; } 5179c2e3e6Spatrick 5279c2e3e6Spatrick } // extern "C" 5379c2e3e6Spatrick 5479c2e3e6Spatrick // provide dummy implementations for the 'no exceptions' case. __getExceptionClass(const _Unwind_Exception *)5579c2e3e6Spatrickuint64_t __getExceptionClass (const _Unwind_Exception*) { return 0; } __setExceptionClass(_Unwind_Exception *,uint64_t)5679c2e3e6Spatrickvoid __setExceptionClass ( _Unwind_Exception*, uint64_t) {} __isOurExceptionClass(const _Unwind_Exception *)5779c2e3e6Spatrickbool __isOurExceptionClass(const _Unwind_Exception*) { return false; } 5879c2e3e6Spatrick 5979c2e3e6Spatrick } // abi 60